Case report: Mixed type of Rosai-Dorfman disease – A rare case report from South India

Rosai-Dorfman disease (RDD) is a rare, idiopathic, non-neoplastic histioproliferative disease of unknown etiology. A 21 years young male presented with right infraorbital mass with multiple cervical lymph node swelling with inconclusive radiological diagnosis, subjected for complete surgical excision and histopathology examination. Histopathology examination confirmed diagnosis of RDD with immunohistochemical examination showing CD 68, S-100, and Ki-67 positivity. It is a rare case of mixed type of RDD reported from South India.